Evelyn Shaw received altered pickup information, and boarded a fake family vehicle with 10-month-old Oliver in her arms, only to come face to face with the gun of professional hitman Adrian Knox. Before she could explain her identity, the hit squad sent by Julian surrounded the car.
It was then that Evelyn learned Oliver was the sole beneficiary of the Ashford family's billion-dollar trust. Before midnight, the officially appointed emergency guardian must complete dual identity verification with Oliver to activate the irrevocable child protection trust; should the verification fail, Julian, who holds a temporary guardianship order, will gain control of the trust, the group's voting rights, and authority over the child's life and medical care.
To break through the city-wide lockdown Julian has orchestrated, Evelyn is forced to pose as a married couple with Adrian, who suffers from traumatic panic disorder. However, Adrian not only accepted the kidnapping order, but also personally disabled the perimeter security at Oliver's home; while Evelyn seems frail, she was once the "Nightingale", the most feared female assassin in the underworld.
A woman who dares not be a mother, a man who believes he is unworthy of love, must protect the billion-dollar baby before the clock strikes midnight, and complete a deadly escape that evolves from a fake marriage to a real family.